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What the FDA labels say about taking them together

Fingolimod and ketoconazole

Fingolimod's FDA label of July 22, 2026 names ketoconazole in its drug interactions section; the ketoconazole label PlainMeds reads does not name fingolimod. The fingolimod label: “DRUG INTERACTIONS Systemic Ketoconazole: Monitor during concomitant use.”

Check it at the source: the fingolimod FDA label on DailyMed (effective July 22, 2026, Novartis Pharmaceuticals Corporation); the ketoconazole FDA label on DailyMed (effective January 28, 2026, E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC).

What does the fingolimod label say about ketoconazole?

Fingolimod label, drug interactions

DRUG INTERACTIONS Systemic Ketoconazole: Monitor during concomitant use.

Source: FDA drug label (Gilenya), Novartis Pharmaceuticals Corporation, effective July 22, 2026 (SPL set cc9e1c8c-0e2b-44e2-878b-27057f786be9), via openFDA; the full label on DailyMed

What does the ketoconazole label say about fingolimod?

Ketoconazole's label (effective January 28, 2026) does not name fingolimod in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (ketoconazole), E. Fougera & Co. a division of Fougera Pharmaceuticals, LLC, effective January 28, 2026 (SPL set cad7c647-34a9-4e4e-83b3-8d78e58f588f), via openFDA; the full label on DailyMed

These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.

Both medicines on the record

21Fingolimod generic labelers
30Ketoconazole generic labelers
FingolimodKetoconazole
Labeled forMultiple sclerosisFungal infections
Boxed warningNoNo
Pharmacy cost (NADAC)$1.58 per capsule 0.5 mg capsule$0.249 per gram 2% cream
Shortage nowNo current entryNo current entry

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

What next?